Capacitance pen

Abstract

The invention discloses a capacitance pen, and relates to the technical field of active capacitance pens. The capacitance pen comprises a pen point, a PCB, a pressure sensing assembly and a pen body, wherein the pressure sensing assembly is in communication connection with the PCB; the pen body comprises a magnetic attraction part and a conductive part electrically connected with the PCB, the pressure sensing assembly is arranged at the end, away from the pen point, of the magnetic attraction part, the pen point can transmit pressure to the pressure sensing assembly through the magnetic attraction part, and the pen point is detachably connected with the magnetic attraction part through magnetic attraction. And when the pen point and the magnetic attraction piece are in a magnetic attraction state, the pen point is electrically connected with the conductive piece. According to the capacitance pen, the pen point replacement efficiency is improved, the user experience is improved, the structure is simplified, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of active capacitive pens, and in particular to a capacitive stylus. Background Art

[0002] Capacitive pen is a pen made of conductive material with conductive properties, used to touch the capacitive screen to complete human-computer interaction. Capacitive pen is an auxiliary device that imitates the human body to complete human-computer interaction through conductive material. With the development of APP, the current capacitive pen is no longer a simple replacement for finger operation. More and more professionals have tried to use active capacitive pens to work on mobile devices.

[0003] It is understandable that after long-term use, the pen tip of a capacitive stylus pen is easily worn out, which affects the user experience. Or different pen tips are required for different purposes. Usually, the pen tip is connected to the pen body through a thread to facilitate user replacement of the pen tip. However, this structure has low assembly and disassembly efficiency and requires a separate design of a structure to electrically connect the pen tip to the PCB board, which increases the cost. Summary of the invention

[0004] The purpose of the present invention is to provide a capacitive stylus, which improves the efficiency of replacing the pen tip, enhances the user experience, simplifies the structure and reduces the cost.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A capacitive stylus pen, comprising:

[0007] written;

[0008] A PCB board and a pressure sensing component, wherein the pressure sensing component is communicatively connected with the PCB board;

[0009] The pen body includes a magnetic component and a conductive component electrically connected to the PCB board. The pressure sensor component is arranged at an end of the magnetic component away from the pen tip. The pen tip can transfer pressure to the pressure sensor component through the magnetic component. The pen tip is magnetically connected to the magnetic component, and when the pen tip and the magnetic component are in a magnetic state, the pen tip is electrically connected to the conductive component.

[0010] As an optional solution for the above-mentioned capacitive pen, the pen tip includes a first connecting member and a second connecting member connected to each other, the first connecting member is made of a conductive non-ferromagnetic material, the second connecting member is made of a conductive ferromagnetic material, the second connecting member is magnetically connected to the magnetic member, and the conductive member is electrically connected to the first connecting member through the second connecting member to conduct the first connecting member to the PCB board.

[0011] As an optional solution of the above-mentioned capacitive stylus, the first connecting member includes a connecting end, the connecting end is provided with a connecting groove, and the second connecting member is partially arranged in the connecting groove and is detachably connected to the connecting groove.

[0012] As an optional solution of the above-mentioned capacitive stylus, the pen tip also includes a conductive ring, which is sleeved on the outer circumference of the second connecting member, and the end surface of the connecting end abuts against the conductive ring to be electrically connected to the conductive ring.

[0013] As an optional solution of the above-mentioned capacitive stylus, the conductive ring is made of a conductive elastic material.

[0014] As an optional solution of the above-mentioned capacitive pen, the pen head also includes an insulating sleeve, the first connecting member includes a writing end, and the insulating sleeve is arranged on the writing end.

[0015] As an optional solution of the above-mentioned capacitive stylus, the conductive member is a spring, the spring is sleeved on the pen tip to be electrically connected to the pen tip, and the spring is configured to drive the magnetic attraction member to press against the pressure sensing component.

[0016] As an optional solution of the above-mentioned capacitive pen, the radius of one end of the spring close to the magnetic attraction component gradually decreases to form a conductive end surface, and the pen tip abuts against the conductive end surface.

[0017] As an optional solution for the above-mentioned capacitive pen, the pen body includes a sleeve, the sleeve includes a supporting sleeve and a positioning sleeve, the positioning sleeve is movably arranged in the supporting sleeve, the magnetic attraction component is arranged in the positioning sleeve, and the pen head is inserted into the supporting sleeve and the positioning sleeve.

[0018] As an optional solution for the above-mentioned capacitive pen, the sleeve also includes a buffer ring, which is arranged between the supporting sleeve and the positioning sleeve, and the buffer ring is configured to elastically abut the supporting sleeve and the positioning sleeve along the length direction of the capacitive pen to limit the supporting sleeve and the positioning sleeve.

[0019] Beneficial effects of the present invention:

[0020] The present invention provides a capacitive pen. The pen tip of the capacitive pen can be detached from the pen body by magnetic connection with a magnetic suction part, which is convenient for users to replace the pen tip and improves the replacement efficiency. After the pen tip is installed on the pen body, the pen tip can be connected to a PCB board through a conductive part to interact with a capacitive screen of an electronic device, and the pressure of the pen tip when in use can be transmitted to a pressure sensing component through the magnetic suction part, so that the capacitive pen can provide coarse and fine feedback on the pressure of the capacitive screen, thereby optimizing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a capacitive stylus provided by the present invention;

[0022] Figure 2 is an exploded view of the pen tip and pen core assembly provided by the present invention;

[0023] Figure 3 is a cross-sectional view of a capacitive stylus provided by the present invention;

[0024] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0025] Figure 5 It is a structural schematic diagram of the spring provided by the present invention;

[0026] Figure 6 It is a cross-sectional view of the spring and the magnetic attraction member provided by the present invention.

[0027] In the figure:

[0028] 1. Pen tip; 11. First connecting piece; 111. Writing end; 112. Connecting end; 12. Second connecting piece; 13. Conductive ring; 14. Insulating sleeve;

[0029] 2. Pen core assembly; 21. Sleeve; 211. Support sleeve; 212. Positioning sleeve; 213. Buffer collar; 2121. Limiting truncated table; 22. Pressure sensor; 23. Spring; 231. Conductive end face; 24. Magnetic element; 241. Positioning groove; 25. Ejector; 26. Lead wire;

[0030] 3. Pen assembly; 31. Shell; 311. Fixing surface; 312. Charging port; 32. PCB board; 33. Side key; 34. Fixing magnet;

[0031] 4. Battery. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0034] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0037] This embodiment provides a capacitive stylus pen. Figure 1 to Figure 3 As shown, the capacitive pen includes a pen tip 1 and a pen body, wherein the pen body is the main structure of the capacitive pen, the circuit structure, battery and other structures of the capacitive pen are arranged in the pen body, and the pen tip 1 is used to abut the capacitive screen to interact with the capacitive screen.

[0038] Generally speaking, the pen body is composed of a refill assembly 2 and a pen shaft assembly 3. The pen shaft assembly 3 includes a shell 31 and a PCB board 32 arranged in the shell 31. One end of the shell 31 is provided with a receiving groove with an opening. The refill assembly 2 is arranged in the receiving groove. The pen head 1 extends into the receiving groove through the opening and is fixed to the refill assembly 2.

[0039] In this embodiment, the capacitive stylus is an active capacitive stylus, so the pen head 1 is electrically connected to the PCB board 32, so that the capacitive stylus can interact with the capacitive screen of the electronic device. At the same time, in order to improve functionality, the housing 31 also includes a side key 33, which is arranged in the housing 31 and is communicatively connected to the PCB board 32. The user can issue instructions by pressing the side key 33 a certain number of times or with a certain force, so as to improve the interaction experience with the electronic device.

[0040] like Figure 3 As shown, the pen assembly 3 also includes a fixed magnet 34, which is arranged in the housing 31. The fixed magnet 34 can attract each other with the magnet at the position where the capacitive pen is placed on the electronic device, so that the capacitive pen is fixed to the electronic device, which is convenient for use and can also prevent the capacitive pen from being lost. It is worth noting that the housing 31 is provided with a fixed surface 311, and the fixed magnet 34 is arranged on the back side of the fixed surface 311 or penetrates the fixed surface 311. The fixed surface 311 can ensure that there is enough contact area between the capacitive pen and the electronic device, so that the stability of the capacitive pen is improved when the capacitive pen and the electronic device attract each other.

[0041] In order to actively interact with electronic devices, the capacitive stylus further includes a battery 4, which is disposed in the housing 31 and electrically connected to the PCB board 32. It is worth noting that the battery 4 is a secondary battery 4, and the service life of the capacitive stylus can be greatly extended by charging the secondary battery 4.

[0042] Specifically, the housing 31 is provided with a charging port 312, and a charging connector is provided in the charging port 312, and the charging connector can charge the secondary battery 4 through a charging cable. In some embodiments, a charging coil is provided inside the housing 31, and the charging coil is provided on the back side of the fixing surface 311 and is electrically connected to the secondary battery 4. When the capacitive pen is adsorbed on the electronic device, the charging coil can cooperate with the corresponding coil provided in the electronic device to charge the secondary battery 4.

[0043] It is worth noting that after long-term use, the pen tip 1 of the capacitive stylus is easily worn out, which affects the user experience, or different pen tips 1 are required for different uses, and the pen tip 1 is usually connected to the pen body through a thread to facilitate users to replace the pen tip 1. However, this structure has low disassembly and assembly efficiency, and requires a separate design of a structure for electrically connecting the pen tip 1 to the PCB board 32, which increases the cost.

[0044] like Figure 1 to Figure 4 As shown, in order to solve the above problems, the refill assembly 2 of the capacitive pen provided in this embodiment includes a sleeve 21, a magnetic component 24 and a conductive component electrically connected to the PCB board 32, the magnetic component 24 is arranged in the sleeve 21, the pen tip 1 is passed through the sleeve 21 and is magnetically connected to the magnetic component 24, and the conductive component is electrically connected to the PCB board 32 and the pen tip 1.

[0045] The pen tip 1 of the capacitive stylus pen can be detached from the pen body by magnetically connecting with the magnetic member 24, so that the user can easily replace the pen tip 1. After the pen tip 1 is installed on the pen body, the pen tip 1 can be connected to the PCB board 32 through the conductive member to interact with the capacitive screen of the electronic device, thereby simplifying the structure.

[0046] In the actual use of the capacitive stylus, when the pen tip 1 is magnetized by the magnetic attraction member 24, it is easy to absorb dust or debris, affecting the use experience. To solve this problem, the pen tip 1 includes a first connecting member 11 and a second connecting member 12 connected to each other, the first connecting member 11 is made of a conductive non-ferromagnetic material, and the second connecting member 12 is made of a ferromagnetic material.

[0047] The pen tip 1 of the capacitive stylus is divided into two parts: a first connecting member 11 and a second connecting member 12. The first connecting member 11 is conductive, so that the first connecting member 11 can be connected to the PCB board 32 through the conductive member to interact with the capacitive screen of the electronic device. The second connecting member 12 is made of ferromagnetic material and is used to be magnetically fixed to the magnetic member 24 in the pen holder, so that the user can disassemble and assemble the pen tip 1 when replacing the pen tip 1. The first connecting member 11 is made of non-ferromagnetic material to ensure that it will not be magnetized, and will not absorb dust or debris, thereby improving the user experience.

[0048] Specifically, the conductive non-ferromagnetic material of the first connecting member 11 may be some metals that cannot be magnetized, such as copper, aluminum, austenitic stainless steel, etc., or may be non-metal, such as graphite.

[0049] Preferably, the second connector 12 is conductive, and the conductive member is electrically connected to the first connector 11 through the second connector 12, so as to conduct the first connector 11 with the PCB board 32. By selecting a conductive material to make the second connector 12, the arrangement of the conductive member can be made easier, and the conductive member can be connected to the first connector 11 or the second connector 12.

[0050] It is worth noting that metals such as iron, cobalt, and nickel are conductors, and iron, cobalt, and nickel are ferromagnetic, so the ferromagnetic material used to make the second connecting member 12 can be metals such as iron, cobalt, and nickel.

[0051] The first connecting member 11 has a writing end 111 and a connecting end 112 . The writing end 111 is an end of the first connecting member 11 away from the refill assembly 2 , and the connecting end 112 is connected to the second connecting member 12 .

[0052] like Figure 4As shown, the connecting end 112 is provided with a connecting groove, and the second connecting member 12 is partially arranged in the connecting groove and is detachably connected to the connecting groove. The first connecting member 11 is connected to the second connecting member 12 through the connecting groove, which can ensure the reliability of the connection between the first connecting member 11 and the second connecting member 12, and can also ensure the coaxiality of the first connecting member 11 and the second connecting member 12, so that when the pen head 1 is installed into the refill assembly 2, the pen head 1 can be ensured to be coaxial with the refill assembly 2 and the pen body assembly 3, thereby improving the comfort during writing.

[0053] Specifically, the second connecting member 12 is threadedly connected to the connecting groove, so that the second connecting member 12 is connected and fixed to the first connecting member 11, and the structure is simple and easy to assemble. Moreover, after disassembling the pen tip 1, the first connecting member 11 and the second connecting member 12 can be further disassembled, and a new or suitable first connecting member 11 can be replaced separately, thereby reducing costs.

[0054] It is understandable that the second connector 12 is in contact with the first connector 11 through a threaded structure, and the contact area is small, and poor contact is easily caused by a design gap, which affects the connectivity between the first connector 11 and the PCB board 32. Figure 2 and Figure 4 As shown, to solve this problem, the pen tip 1 further includes a conductive ring 13 , which is sleeved on the outer periphery of the second connecting member 12 , and the end surface of the connecting end 112 abuts against the conductive ring 13 to be electrically connected to the conductive ring 13 .

[0055] The conductive ring 13 abuts against the outer wall of the second connecting member 12, and also abuts against the end face of the connecting end 112, ensuring that the conductive ring 13 has a large contact area with the second connecting member 12 and the first connecting member 11, making the conduction between the first connecting member 11 and the second connecting member 12 more stable, and preventing poor contact caused by hard contact between the first connecting member 11 and the second connecting member 12.

[0056] Specifically, the conductive ring 13 is made of a conductive elastic material so that the conductive ring 13 can be tightly sleeved on the outer periphery of the second connector 12, so that there is a sufficient contact area between the conductive ring 13 and the second connector 12 to ensure the reliability of the electrical connection between the first connector 11 and the second connector 12. For example, the material of the conductive ring 13 can be conductive silicone.

[0057] In some embodiments, the second connecting member 12 is interference-fitted with the first connecting member 11 . This connection method has a simple structure, is easy to assemble, and has reliable connectivity.

[0058] like Figure 2 and Figure 4As shown, the pen tip 1 also includes an insulating sleeve 14, which is sleeved on the writing end 111. It is understandable that the pen tip 1 needs to directly contact or even slide with the capacitive screen, but it is also necessary to ensure that the conductive part of the pen tip 1 does not contact the capacitive screen, so the insulating sleeve 14 needs to be sleeved on the writing end 111 of the first connecting member 11.

[0059] It is worth noting that the insulating sleeve 14 can be hard or elastic. The hard insulating sleeve 14 can make the writing feel of the capacitive pen close to the writing pen used in daily life (such as neutral pen, fountain pen, etc.), while the elastic insulating sleeve 14 can protect the capacitive screen and prevent the pen head 1 from scratching the capacitive screen. At the same time, it can also improve the damping feeling when using the capacitive pen and improve the fine feeling when controlling the capacitive pen to write.

[0060] In order to prevent the insulating sleeve 14 from falling off the first connecting member 11, a plurality of annular grooves are arranged at intervals along the axial direction on the outer periphery of the first connecting member 11, and annular protrusions corresponding to the plurality of annular grooves are arranged on the inner wall of the insulating sleeve 14. Each annular protrusion is inserted into the corresponding annular groove, so that the insulating sleeve 14 is firmly covered on the writing end 111.

[0061] It is understandable that when the capacitive pen writes on the capacitive screen, the thickness of the brush needs to be fed back according to the pressure of the capacitive pen on the capacitive screen to optimize the user experience. Figure 2 and Figure 4 As shown, to achieve this purpose, the pen core assembly 2 also includes a pressure sensing assembly, which is arranged at the end of the magnetic element 24 away from the pen tip 1. When the user uses the capacitive pen to write on the capacitive screen, the pen tip 1 will press the magnetic element against the pressure sensing assembly. According to the pressure value fed back by the pressure sensing assembly, the capacitive pen can detect the pressure of the user pressing the capacitive pen in real time, so that the capacitive screen can provide correct thickness feedback according to the pressure value, so that the thickness of the lines on the capacitive screen is associated with the strength of the hand used, thereby improving the use accuracy of the capacitive pen and optimizing the user experience.

[0062] In this embodiment, the pressure sensing assembly includes a pressure sensor 22 .

[0063] In this embodiment, the conductive member is a spring 23, which is sleeved on the second connecting member 12 to be electrically connected to the second connecting member 12, and the spring 23 is configured to drive the magnetic member 24 to press against the pressure sensor 22. On the one hand, the spring 23 can make the refill assembly 2 and the pen head 1 as a whole in a relatively stable state, preventing the relatively movable parts from giving the user a loose feeling. On the other hand, the spring 23 can also make an initial pressure between the magnetic member 24 and the pressure sensor 22, at which time the pressure provided by the user when writing can be linearly increased, avoiding the gap between the magnetic member 24 and the pressure sensor 22, which leads to an inaccurate proportional relationship between the pressure value detected by the pressure sensor 22 and the pressing force when the user writes. Moreover, the spring 23 itself is made of metal material and has conductivity, so the spring 23 can be used to electrically connect the PCB board 32 to the second connecting member 12.

[0064] like Figure 5 As shown, the electrical connection between the spring 23 and the PCB board 32 can be achieved by providing a lead 26. Since the spring 23 and the lead 26 do not need to be disassembled, the structure can be simplified and the cost can be reduced.

[0065] Furthermore, the lead 26 is integrally formed with the spring 23, that is, the end of the spring 23 extends toward the pen assembly 3, thereby connecting with the PCB board 32, which simplifies the structure and ensures the reliability of the connection.

[0066] like Figure 2 and Figure 4 As shown, the sleeve 21 includes a supporting sleeve 211 and a positioning sleeve 212. The positioning sleeve 212 is movably arranged in the supporting sleeve 211. The supporting sleeve 211 is used to be fixed with the housing 31 to ensure the stability of the position of the refill assembly 2, and the positioning sleeve 212 can move relative to the supporting sleeve 211, which can not only reduce the demand for processing accuracy, improve production efficiency and reduce costs, but also facilitate assembly and avoid jamming. Among them, the inner wall of the positioning sleeve 212 is convexly provided with a limiting truncated cone 2121, one end of the spring 23 is in contact with the limiting truncated cone 2121, and the other end of the spring 23 is in contact with the magnetic attraction member 24.

[0067] It is understandable that the spring 23 can not only make up the gap between the magnetic element 24 and the pressure sensor 22, but also make the positioning sleeve 212 and the supporting sleeve 211 stably contact each other, and ensure that there is no relative movement between the positioning sleeve 212 and the supporting sleeve 211 along the axial direction of the capacitive pen when the capacitive pen is used normally. It is worth noting that in this embodiment, the side of the limiting cone 2121 facing away from the spring 23 contacts the conductive ring 13, and due to the elastic force of the spring 23, the limiting cone 2121 can press the conductive ring 13 against the connecting end 112, further improving the reliability of the conduction of the pen tip 1.

[0068] Furthermore, the radius of one end of the spring 23 close to the magnetic member 24 gradually decreases to form a conductive end face 231, and the second connector 12 abuts against the conductive end face 231. The conductive end face 231 is located between the second connector 12 and the magnetic member 24. The arrangement of the conductive end face 231 can further increase the contact area between the spring 23 and the second connector 12, realize the conduction between the metal rod and the spring 23, and ensure the connection reliability between the second connector 12 and the spring 23.

[0069] In order to prevent the magnetic member 24 from crushing the pressure sensor 22 due to being too hard, a push rod 25 is protruded from one end of the magnetic member 24 facing the pressure sensor 22, and the push rod 25 is configured to abut the pressure sensor 22. The push rod 25 is made of plastic, which has a certain wear resistance and can prevent damage to the pressure sensor 22. Specifically, the push rod 25 is made of POM (Polyoxymethylene, polyoxymethylene resin) material, which has good wear resistance and is easy to process. The end of the push rod 25 abutting the pressure sensor 22 can be processed into an arc structure to eliminate sharp corners and protect the pressure sensor 22.

[0070] It is understandable that when a user uses a capacitive stylus to write, the first connector 11 will generate a radial squeezing force on the support sleeve 211, which will cause the support sleeve 211 to bend, thereby causing the support sleeve 211 to be unable to effectively support the pen head 1, affecting the writing feel. Figure 2 and Figure 4 As shown, in order to solve the above problem, the sleeve 21 also includes a buffer ring 213, which is arranged between the supporting sleeve 211 and the positioning sleeve 212. The buffer ring 213 is configured to elastically abut the supporting sleeve 211 and the positioning sleeve 212 along the length direction of the capacitive pen to limit the supporting sleeve 211 and the positioning sleeve 212.

[0071] When the support sleeve 211 is subjected to the squeezing force of the pen tip 1, the support sleeve 211 is partially bent or tilted, and along the axial direction of the capacitive pen, the distance between the support sleeve 211 and the positioning sleeve 212 on one side of the pen tip 1 is reduced. At this time, the buffer ring 213 can buffer the bending of the support sleeve 211, which can not only reduce the bending degree of the support sleeve 211, but also provide a certain resilience, thereby providing a certain damping feeling and improving the writing feel.

[0072] It is worth noting that if Figure 6As shown, the magnetic member 24 is provided with a positioning groove 241, and the second connecting member 12 is inserted into the positioning groove 241 and radially positioned by the side wall of the positioning groove 241. When the user installs the pen tip 1, the second connecting member 12 of the pen tip 1 can be inserted into the positioning groove 241 and radially positioned by the positioning groove 241 under the magnetic attraction of the magnetic member 24, thereby ensuring the installation accuracy of the pen tip 1, and the positioning groove 241 can also ensure that the axis of the pen tip 1 coincides with the axis of the capacitive stylus, thereby improving the use accuracy and user experience of the capacitive stylus.

[0073] It is worth noting that the spring 23 is inserted into the positioning groove 241 and is located between the second connecting member 12 and the magnetic attraction member 24. At this time, the radial positioning of the second connecting member 12 is jointly limited by the spring 23 and the positioning groove 241, and the second connecting member 12 abuts against the conductive end face 231 of the spring 23 in the positioning groove 241 to ensure the reliability of the connection.

[0074] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A capacitive stylus pen, characterized in that: include: Pen tip (1); A PCB board (32) and a pressure sensing component, wherein the pressure sensing component is communicatively connected to the PCB board (32); The pen body comprises a magnetic component (24) and a conductive component electrically connected to the PCB board (32); the pressure sensing component is arranged at an end of the magnetic component (24) away from the pen tip (1); the pen tip (1) can transmit pressure to the pressure sensing component through the magnetic component (24); the pen tip (1) is magnetically connected to the magnetic component (24); and when the pen tip (1) and the magnetic component (24) are in a magnetic state, the pen tip (1) is electrically connected to the conductive component.

2. The capacitive stylus pen according to claim 1, characterized in that: The pen tip (1) comprises a first connecting member (11) and a second connecting member (12) which are connected to each other, wherein the first connecting member (11) is made of a conductive non-ferromagnetic material, and the second connecting member (12) is made of a conductive ferromagnetic material. The second connecting member (12) is magnetically connected to the magnetic member (24), and the conductive member is electrically connected to the first connecting member (11) via the second connecting member (12) so as to conduct electricity between the first connecting member (11) and the PCB board (32).

3. The capacitive stylus pen according to claim 2, characterized in that: The first connecting member (11) comprises a connecting end (112), the connecting end (112) being provided with a connecting groove, and the second connecting member (12) being partially disposed in the connecting groove and detachably connected to the connecting groove.

4. The capacitive stylus pen according to claim 3, characterized in that: The pen tip (1) further comprises a conductive ring (13), wherein the conductive ring (13) is sleeved on the outer periphery of the second connecting member (12), and the end surface of the connecting end (112) abuts against the conductive ring (13) to be electrically connected to the conductive ring (13).

5. The capacitive stylus pen according to claim 4, characterized in that: The conductive ring (13) is made of conductive elastic material.

6. The capacitive stylus pen according to claim 2, characterized in that: The pen tip (1) further comprises an insulating sleeve (14); the first connecting member (11) comprises a writing end (111); and the insulating sleeve (14) is sleeved on the writing end (111).

7. The capacitive stylus pen according to any one of claims 1 to 6, characterized in that: The conductive member is a spring (23), and the spring (23) is sleeved on the pen tip (1) to be electrically connected to the pen tip (1). The spring (23) is configured to drive the magnetic attraction member (24) to press against the pressure sensing component.

8. The capacitive stylus pen according to claim 7, characterized in that: The radius of one end of the spring (23) close to the magnetic attraction member (24) gradually decreases to form a conductive end surface (231), and the pen tip (1) abuts against the conductive end surface (231).

9. The capacitive stylus pen according to any one of claims 1 to 6, characterized in that: The pen body comprises a sleeve (21), the sleeve (21) comprises a supporting sleeve (211) and a positioning sleeve (212), the positioning sleeve (212) is movably arranged in the supporting sleeve (211), the magnetic attraction member (24) is arranged in the positioning sleeve (212), and the pen head (1) is inserted into the supporting sleeve (211) and the positioning sleeve (212).

10. The capacitive stylus pen according to claim 9, characterized in that: The sleeve (21) further comprises a buffer ring (213), wherein the buffer ring (213) is arranged between the supporting sleeve (211) and the positioning sleeve (212), and the buffer ring (213) is configured to elastically abut against the supporting sleeve (211) and the positioning sleeve (212) along the length direction of the capacitive stylus so as to limit the supporting sleeve (211) and the positioning sleeve (212).

Images